KR20120076625A - Method and apparatus for providing 3d contents - Google Patents

Abstract

A method and apparatus for providing three-dimensional content are provided. An apparatus for providing 3D content may include: a video information analyzer to analyze whether an image is 3D content, a device information extractor to determine whether 3D content is supported by the apparatus displaying the image, and the 3D content And a video output unit configured to correct the image and a screen output unit to output the corrected image to the display device based on whether the 3D content is supported or not.

Description

METHOD AND APPARATUS FOR PROVIDING 3D CONTENTS}

The present invention relates to a method and apparatus for providing content, and more particularly, to a method and apparatus for providing three-dimensional content.

Recently, the craze for 3D content (hereinafter referred to as 3D) content continues, and 3D content production is actively progressing not only movies but also dramas, music videos, documentaries, and the like.

The 3D content production craze is not an exception in TVs, and the penetration rate of 3D TVs is also increasing significantly. It is spreading to new businesses of operators.

In this situation, some Pay-TV operators are broadcasting 3D channels, and terrestrial broadcasters are also piloting 3D broadcasting.

On the other hand, Pay-TV operators use side-by-side encoding and transmission methods even though there is a method of encoding or transmitting 3D broadcasting contents while providing 3D broadcasting services. To recycle existing infrastructure, such as boxes (STBs).

For reference, when the 3D content is transmitted in a sequential manner, a situation in which the decoder of the existing set-top box cannot process the content may occur.

However, when 3D content is provided in a side-by-side manner, when viewing 3D content on an existing TV instead of a 3D TV, there is an inconvenience in viewing because the left and right screens of the content are viewed together.

In addition, when a menu for 3D content (3D menu) is provided in a side-by-side manner, the 3D menu is broken (strictly overlapped) in a 3D TV.

The present invention provides content so that viewing is not inconvenient even in general TV, not 3D TV, when providing 3D (hereinafter, referred to as 3D) content in a side-by-side manner.

In addition, when providing a menu of 3D content provided by the side-by-side method, the menu is prevented from being broken and a menu of 3D content having a more three-dimensional effect is provided.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

In order to achieve the above object, the apparatus for providing three-dimensional content according to an aspect of the present invention is a video information analysis unit to determine whether the three-dimensional content by analyzing the image, the three-dimensional content support of the apparatus for displaying the image And a device information extracting unit to check whether there is a 3D content and whether to support the 3D content, a video correcting unit to correct the image, and a screen output unit to output the corrected image to the display device.

In order to achieve the above object, another method for providing three-dimensional content in an aspect of the present invention is (a) in a broadcast system, a set-top box by inserting information about the three-dimensional content in a broadcast channel or video on demand (VOD) image (B) in the set-top box, analyzing the image to determine whether it is 3D content and whether the device displaying the image supports 3D content, (c) in the set-top box, Generating a menu graphic from the analyzed image, (d) performing, at the set top box, one or more of correcting the image and correcting the menu graphic based on the verification result, and (e) the set top box In the step of overlaying the result on the image and outputs.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It is provided to fully inform the owner of the scope of the invention.

The present invention as described above, when providing three-dimensional (hereinafter referred to as 3D) content in a side-by-side method, it is possible to provide the content so that there is no inconvenience in viewing on a normal TV, not 3D TV.

In addition, by allowing the 3D content provided by the side-by-side method to be viewed without inconvenience on a general TV, a broadcaster can reduce separate bandwidth consumption for 3D broadcasting.

In addition, when providing a menu of 3D content provided by the side-by-side method, it is possible to prevent the menu from being broken and provide a menu of 3D content with more three-dimensional effect.

1 is a view showing the principle and method of the three-dimensional TV.
2 is a diagram illustrating a method of processing 3D content in a side-by-side manner.
3 and 4 are diagrams illustrating issues when transmitting 3D content in a side-by-side manner.
5 is a diagram illustrating a configuration of a system for providing 3D content according to an embodiment of the present invention.
6 is a diagram illustrating a 3D content and menu correction process in the 3D content processing method according to an embodiment of the present invention.
7 is a diagram illustrating a configuration of an MPEG2 TS used in the present invention.
8 is a diagram illustrating a configuration of a private descriptor according to an embodiment of the present invention.
9 is a diagram illustrating a process of confirming 3D content in a video information analyzer of a set-top box according to an embodiment of the present invention.
10 is a diagram showing an example of TV type setting according to an embodiment of the present invention.
11 is a diagram illustrating a process of displaying 3D content on a general TV according to an embodiment of the present invention.
12 is a diagram illustrating a process of displaying 3D content on a 3D TV according to an embodiment of the present invention.
FIG. 13 is a diagram illustrating a method of adjusting perspective for a menu corrector according to an embodiment of the present invention.
14 is a diagram illustrating a method of adjusting perspective for a menu corrector according to another exemplary embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

For reference, in the entire specification, when a part is "connected" to another part, it is not only "directly connected" but also "electrically connected" with another element in between. Also includes.

Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

1 is a view showing the principle and method of the three-dimensional (hereinafter referred to as 3D) TV.

As shown in FIG. 1, 3D content may be transmitted through a side-by-side method or a sequential method.

When a 3D TV receives 3D content through a side-by-side method, the received 3D content may be processed (decoded) on the 3D TV and displayed on the screen in 3D, but a general TV, that is, two-dimensional ( When 3D content is received from the TV, hereinafter referred to as 2D, the received 3D content is displayed on the screen as it is at the time of transmission (1a).

In addition, when the 3D TV receives the 3D contents through the sequential method, the received 3D contents may be decoded and displayed on the screen in 3D (1b).

2 is a diagram illustrating a method of processing 3D content in a side-by-side manner.

In the side-by-side method, the horizontal resolution is reduced in half, which can affect the sharpness. As shown in FIG. 2, the side-by-side method has only 960 pixels of horizontal resolution when one image (left or right image) is viewed based on an HD screen.

Of course, horizontal scaling is performed on 3D TVs, but when viewed in HD video, half of the video can be regarded as damaged information, which is necessary when providing 3D content using a side-by-side method. It is an element that needs to be solved.

3 and 4 are diagrams illustrating issues when transmitting 3D content in a side-by-side manner.

As shown in FIG. 3, when the 3D content is transmitted by the side-by-side method, the video is displayed on the 2D TV as a side-by-side method at the time of transmission (3a). The image may be decoded and displayed in three dimensions (3a).

In addition, as shown in FIG. 4, when the 3D menu is transmitted by the side-by-side method, the 3D TV may overlay and output the menu on the 3D content.

However, in the 3D TV, the image of the menu is divided into left and right, and the 3D menu is also divided into [A, B] and [C, D] and included in the left and right images, respectively (4a and 4b).

When the menu image processed and outputted as described above is viewed on a 3D TV, the menu may overlap or break differently as intended (4c) [A + C, B + D].

5 is a diagram illustrating a configuration of a system for providing 3D content according to an embodiment of the present invention.

For reference, the system to which the present invention can be applied may be applied to a broadcasting system such as terrestrial, satellite, cable, and IPTV broadcasting service that provides a 3D broadcasting channel or VoD service in a side-by-side manner. It is to be understood that a system environment (eg, a Bule-ray device, etc.) for providing and reproducing the same is included in a system for providing 3D content of the present invention.

In FIG. 5, a broadcasting station (Head-End) 10, which is a server of a broadcasting system, includes a video encoder 11, a 3D content insertion unit 12, and a video transmission unit 13. Insert information about content and transmit it with 3D content.

In this case, the information about the 3D content may be inserted into the program configuration information of the broadcast stream by specifying the stream type according to the video format type, and may be inserted by specifying the content type in the program configuration information of the broadcast stream (described below). See FIG. 8).

The set-top box 20, which is a 3D content processing apparatus of a broadcasting system, analyzes a received broadcast stream under the control of the terminal control unit 21 and the terminal control unit 21 to control 3D broadcasting. Under the control of the video information analyzing unit 22 (see FIG. 9 below) and the terminal control unit 21 for checking whether the playback device (for example, TV) supports 3D (ie, whether it is a general 2D TV or 3D TV) Under the control of the TV information extracting unit 25 (see FIG. 10 below) and the terminal control unit 21 to confirm, it is 3D content and 3D contents for the 2D-capable playback device. And a screen output unit 28 for outputting the 3D content processed by the video correction unit 24.

In addition, under the control of the terminal control unit 21, a menu generation unit 26 for generating a 3D menu from the broadcast stream analyzed by the video information analysis unit 22, and under the control of the terminal control unit 21, the TV information extraction unit And a menu correction unit 27 for processing 3D menus (i.e., correcting the menus without breaking the menu) for 3D content and 3D-capable playback devices (e.g., 3D TVs) according to the checking result of (25). The output unit 28 further includes a function of overlaying and outputting the 3D menu processed by the menu corrector 27 to the 3D content.

Here, the video corrector 24 horizontally scales the left or right area of the 3D content provided by the side-by-side method (see FIG. 11 below).

In addition, the menu correction unit 27 scales the 3D menu provided by the side-by-side method by 1/2, and then arranges them in the left and right areas, respectively, (see FIG. 12 below).

In one embodiment, the menu corrector 27 may additionally provide perspective by sheeting left and right images of the 3D menu (see FIG. 13 below).

In another embodiment, the menu corrector 27 may additionally provide an animation effect through fade-in and fade-out of the 3D menu (see FIG. 14 below).

In particular, when the received broadcast stream is 2D content instead of 3D content, the terminal control unit 21 instructs the video correction unit 24 and the menu correction unit 27 to perform no correction.

In addition, in the case of 3D content and the playback device (2D TV) does not support 3D, the terminal control unit 21 instructs the video correction unit 24 to correct and instructs the menu correction unit 27 to correct the correction.

In addition, when the 3D content and the playback device (3D TV) supports 3D, the terminal control unit 21 instructs the video correction unit 24 to be corrected, and instructs the menu correction unit 27 to correct.

In addition, the TV information extracting unit 25 may obtain TV information through a cable connected to a playback device (for example, TV), but the TV information may be set automatically or manually.

Hereinafter, the functions of the video decoder 23, the video correcting unit 24, the menu generating unit 26, the menu correcting unit 27, and the screen output unit 28 will be described in detail with reference to FIG. 6.

For reference, the components shown in FIG. 5 according to an embodiment of the present invention mean software components or hardware components such as a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC), and perform predetermined roles. .

However, 'components' are not meant to be limited to software or hardware, and each component may be configured to be in an addressable storage medium or may be configured to reproduce one or more processors.

Thus, by way of example, an element may comprise components such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, Routines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.

Components and the functionality provided within those components may be combined into a smaller number of components or further separated into additional components.

6 is a diagram illustrating a 3D content and menu correction process in the 3D content processing method according to an embodiment of the present invention.

After decoding the video, the video decoder 23 transmits the video frame buffer to the video corrector 24 (S61).

Then, the video correction unit 24 receives a control signal from the terminal control unit 21 and performs video correction existing in the video frame buffer.

The video correction unit 24 transmits the correction result in the video video frame buffer to the screen output unit 28 (S62).

Thereafter, the menu generated by the menu generator 26 is present in the Graphics Frame Buffer, and the menu generator 26 transmits the Graphics Frame Buffer to the menu corrector 27 (S63).

Then, the menu correction unit 27 receives the control signal from the terminal control unit 21 to perform the graphics correction existing in the Graphics Frame Buffer, and transmits the correction result in the Graphics Frame Buffer to the screen output unit 28 (S64). ).

Subsequently, the screen output unit 28 overlays each of the correction results existing in the video frame buffer and the graphics frame buffer and outputs them to the TV screen (S65).

The above-described process of S61 ~ S65 can be processed repeatedly repeatedly.

In the contents and menu processing processes (S61 ˜ S65), the terminal controller 21 selects a corresponding service when the user executes a channel, a VoD, or a video (S601), and determines whether the 3D content is received from the video information analyzer 22. Alternatively, video information regarding whether the content is general 2D content is acquired (S602).

Subsequently, when the result of checking the video information (S603), in the case of general 2D content instead of 3D content, the terminal control unit 21 instructs the video decoder 23 to decode (604) and performs no correction to the video correction unit 24. Instruction (S605) and no correction is also instructed in the menu correction unit 27 (S606).

If, as a result of checking the video information of S603, the 3D content, the terminal controller 21 obtains a TV type from the TV information extractor 25 (S607).

If the TV type check result (S608), the general 2D TV, the terminal control unit 21 instructs the video decoder 23 to decode (S609), the video correction unit 24 instructs the correction (S610), menu The government 27 instructs no correction (S611).

If, as a result of checking the TV type of S608, the 3D TV, the terminal control unit 21 instructs the video decoder 23 to decode (S612), and instructs the video correction unit 24 to perform no correction (S613). The menu correction unit 27 instructs correction (S614).

7 is a diagram illustrating a configuration of an MPEG2 TS used in the present invention.

The video format that Pay-TV operators use for channel broadcasting and VoD content is MPEG2-TS (Transport Stream), which is a broadcast standard commonly used by domestic terrestrial / satellite / cable / IPTV broadcasting companies.

MPEG2 TS serves as a container and contains PSI (Program Specific Information), video / audio compressed data, and DSM-CC (general data).

As shown in FIG. 7, the MPEG2 TS includes PSIs such as PAT (Program Association Table), PMT (Program Map Table), AIT (Application Information Table), Video PES (Packetized Elementary Stream), Audio PES, and DSM-CC. It is composed.

The PAT contains information about what pids (packet ids) the PMT has. For example, the PAT has pid values for three PMTs.

The PMT gives you information about how your program is organized. That is, PMT has pid information of PES, AIT and DSM-CC belonging to the program.

For example, PMT 1 is composed of AIT, Video PES 1, Audio PES 1, and DSM-CC 1. The AIT informs the application and contains information about what the DSM-CC is or how to run it.

In the case of terrestrial / cable / satellite digital broadcasting, multiple programs are configured in one MPEG2 TS, and each program means one broadcasting.

For reference, in case of IPTV, only one program exists in one MPEG2-TS as a bandwidth issue.

When such a channel or VoD format exists, an element that distinguishes 3D channel or VoD content is a program.

Therefore, in the present invention, information about whether the corresponding content is 3D content or 2D content is inserted into the program.

In the first embodiment, the 3D content information inserting unit 12 of the broadcasting station 10 inserts 3D content information by specifying a stream_type value as a specific value in the PMT internal video information.

In the second embodiment, the 3D content information inserter 12 of the broadcasting station 10 inserts 3D content information by inserting a private descriptor into the PMT internal video information.

Although the first embodiment has an advantage of not having to configure a private descriptor inside the PMT, there is a disadvantage that several stream_type values must be specified according to the video format type. For example, when the video is MPEG2 or H.264, the stream_type value is designated as each 3D MPEG2 video or 3D H.264 video.

Unlike the first embodiment, the second embodiment uses a private descriptor, which is a flexible method.

In the MPEG2 System standard (ISO / IEC 13818-1), descriptor_tag is used as a method of identifying descriptors. Descriptor_tag values of 64 to 255 are values that can be defined as user private.

8 is a diagram illustrating a configuration of a private descriptor according to an embodiment of the present invention.

As illustrated in FIG. 8, a descriptor_tag value may be designated as 200 and information about whether 3D content is inserted may be inserted.

In FIG. 8, if the contentsType value is '0', the content is normal 2D content, '1' means 3D content, and '2' means “3D + haptic” content.

When the broadcasting station 10 inserts and transmits the information about the 3D content as described above, the process of confirming the information in the set-top box 20 is as shown in FIG. 9.

9 is a diagram illustrating a process of confirming 3D content by the video information analyzer 22 of the set-top box 20 according to an exemplary embodiment of the present invention.

When the user performs channel tuning or VoD connection (S901), the video information analyzer 22 of the set-top box 20 performs PAT analysis on the input broadcast stream (S902) and then performs PMT analysis (S902). S903).

As a result of the PMT analysis, when the contentsType_identifier_descriptor value is '1' or '2' (S904), the video information analyzer 22 processes the input broadcast stream as 3D content (S905).

If the version of the PMT is not changed (S906), the video information analyzer 22 continuously processes the input broadcast stream as 3D content, and if the version of the PMT is changed in the middle, the video information analyzer 22 is input. PMT analysis process is performed again on the broadcast stream.

If, as a result of the PMT analysis of S903, the contentsType_identifier_descriptor value is '0', the video information analyzing unit 22 processes the input broadcast stream as a general video (S907).

Thereafter, if the version of the PMT is not changed (S908), the video information analyzing unit 22 continuously processes the input broadcast stream as 2D content, and performs a PMT analysis process when the version of the PMT is changed in the middle.

10 is a diagram showing an example of TV type setting according to an embodiment of the present invention.

The TV information extracting unit 25 obtains TV information through a cable connected to a playback device (for example, TV), and the TV information may be set automatically or manually.

For reference, whether or not a playback device (for example, a TV) connected to the set-top box 20 supports 3D (3D TV) or not may be automatically detected when an HDMI or DVI cable is connected.

For example, when an HDMI or DVI cable is connected, mutual device information is transmitted through communication between the set-top box 20 and a TV, and a method for a protocol is determined. In this case, information about whether the TV is a 3D TV or not is transmitted from the TV to the set top box 20.

In a TV that does not support the transfer of such information, the user may manually set the TV type in the setting menu of the set-top box 20.

In detail, when the TV type setting is automatically performed (10a), the TV information extracting unit 25 may receive TV information using an HDMI or DVI interface and set the received value as the TV type.

If it fails to determine the TV type in this process (when the TV information is not supported or using a different cable), the UI may output a failure message and display a guide message for manual setting on the TV (10b).

For reference, the default value of the TV type in this case may be 'normal TV'.

If the manual setting is checked, one of 'normal TV' and '3D TV' may be selected for the connected TV type (10c).

11 is a diagram illustrating a process of displaying 3D content on a general TV according to an embodiment of the present invention.

When 3D content (channel / VoD) is output to a general 2D TV, the video correction unit 24 of the set top box 20 processes the 3D content.

That is, the terminal controller 21 transmits a correction instruction to the video correction unit 24 and gives a no correction instruction to the menu correction unit 27.

Then, the video corrector 24 scales the left (or right) video horizontally to fit the full size of the area in the video frame buffer, which is the result of the video decoder 23, and displays the result. Bypass to the output (28).

At this time, since the menu correction unit 27 receives a non-calibration instruction, the menu correction unit 27 delivers the result to the screen output unit 28 as it is.

Subsequently, if the screen output unit 28 overlays the video and the menu and outputs the video, the side-by-side video transmitted in 3D can be viewed without inconvenience on a general 2D TV.

This is a cost-effective way to consider the cost of sending a new 2D image.

12 is a diagram illustrating a process of displaying 3D content on a 3D TV according to an embodiment of the present invention.

When the 3D content (channel / VoD) is output to the 3D TV, the menu adjusting unit 27 of the set top box 20 processes the menu.

That is, the terminal control unit 21 gives a no-correction instruction to the video correction unit 24, delivers a correction instruction to the menu correction unit 27, and the video correction unit 24 receives a no-correction instruction. Bypass the result to section 28.

Thereafter, the menu correction unit 27 receives a correction instruction, scales an area in the graphics frame buffer in half, and arranges the left and right sides of the area.

Thereafter, the menu corrector 27 transmits the result to the screen output unit 28.

Subsequently, when the screen output unit 28 overlays the video and the menu and outputs the menu, the menu itself is also transmitted in a side-by-side manner and the menu can be used in the 3D TV.

FIG. 13 is a diagram illustrating a method of adjusting perspective of a menu of the menu correcting unit 27 according to an embodiment of the present invention.

In the menu correction unit 27, when the graphics area on which the menu is displayed is changed in a side-by-side manner, as illustrated in FIG. 13, the left image is shifted to the right and the right image is shifted to the left. shift) to process.

In other words, if the shifted value is adjusted, the menu is displayed in front of the video rather than the video. In this case, the menu is expressed as having a perspective on a 3D TV.

In this case, the menu corrector 27 may provide a function called setZindex to the application and provide an interface to adjust the shifted value to the z value.

14 is a diagram illustrating a method of adjusting perspective of a menu of the menu correcting unit 27 according to another embodiment of the present invention.

The menu corrector 27 may also provide a simple 3D animation function.

As shown in FIG. 14, values for the start and end of the 3D animation motion can be set. In the case of start, the initial scaling value is 0.6 (1.0: original size) and the alpha value is 0.3 ( 0.0: Fully transparent, 1.0: Fully opaque), zindex (Z-axis value) can be set to 0.0 (0.0: Z-axis position), and time can be set to 500ms.

In the case of termination, the initial setting sets the scaling value to 1.0, the alpha value to 1.0, and the zindex (Z-axis value) to 1.0.

When set as above, the effect on the screen fades in for 0.5 seconds while the menu is enlarged and placed in front of the video.

In FIG. 14, when the setting values for start and end are changed and input for values except $ time_delay, the menu is reduced while fading out for 0.5 seconds.

The menu correction unit 27 may provide various effects to the application by providing the 3D animation effect as described above to the application.

For example, when a new scene changes in a scene, you can fade-out and reduce the existing scene, and give it a fade-in and zoom-in effect for the new scene. Will be higher.

As such, the menu corrector 27 may create various effects on the 3D TV using a general 2D acceleration engine.

For reference, the set-top box 20 described above may be configured separately from a playback device (for example, a TV, etc.) or may be provided inside the playback device.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

10: broadcasting station system (Head-End)
11: video encoder
12: 3D content insertion section
13: Video Sender
20: Set-top Box
21: terminal control unit
22: video information analysis unit
23: video decoder
24: video correction unit
25: TV information extraction unit
26: menu generator
27: menu correction unit
28: screen output

Claims (15)

An apparatus for providing three-dimensional content,
Video information analysis unit for analyzing the image to determine whether or not the three-dimensional content,
A device information extracting unit confirming whether 3D content is supported by the device displaying the image;
A video corrector configured to correct the image based on whether the 3D content and the 3D content are supported;
A screen output unit configured to output the corrected image to the display device
3D content providing apparatus comprising a.
The method of claim 1,
A menu generator for generating a menu graphic from the image analyzed by the video information analyzer;
A menu correction unit for correcting the menu graphic based on whether the 3D content and the 3D content are supported
Further comprising a content providing device.
The method of claim 1,
The video corrector is configured to display a left or right image of the image in full size of the display apparatus when the image is side-by-side type 3D content and the display apparatus does not support 3D content. 3D content providing apparatus for scaling horizontally to fit.
The method of claim 1,
The video correction unit does not correct the image when the image is side-by-side type 3D content and the display apparatus supports the 3D content.
The method of claim 2,
If the image is a three-dimensional content of the side-by-side method, and the display device supports the three-dimensional content, after scaling the horizontal size of the menu graphic to 1/2, An apparatus for providing three-dimensional content, each of which is disposed in the first and second regions of the region where the menu graphic is displayed.
The method of claim 5, wherein
And the menu corrector provides a perspective by shifting the scaled menu graphic disposed in the first and second regions, respectively.
The method of claim 5, wherein
And the menu corrector provides one or more animation effects of fade-in and fade-out to the scaled menu graphics disposed in the first and second regions, respectively. .
The method of claim 2,
And the menu correction unit does not correct the menu graphic when the image is side-by-side type 3D content and the display apparatus does not support 3D content.
The method of claim 5, wherein
And the screen output unit overlays and outputs the menu graphic disposed on the first and second areas, respectively, on the corrected image.
The method of claim 1,
The device information output unit confirms whether the 3D content is supported through a cable connected to the display device, and whether the 3D content is supported is automatically or manually set.
The method of claim 1,
The video includes a broadcast channel or a video on demand (VOD) stream, and a stream type based on a type of a video format is inserted into program configuration information of the video, or information about whether the video is 3D content is inserted. 3D content providing device.
In the method for providing three-dimensional content,
(a) in a broadcasting system, inserting information about three-dimensional content into a broadcast channel or a video on demand (VOD) image and transmitting the information to a set-top box;
(b) checking, at the set top box, whether the image is 3D content by analyzing the image and whether the device displaying the image supports 3D content;
(c) in the set top box, generating a menu graphic from the analyzed image,
(d) performing, at the set top box, one or more of correcting the image and correcting the menu graphic based on the verification result; and
(e) in the set-top box, overlaying the result on the image and outputting the result
3D content providing method comprising a.
The method of claim 12,
The step (d)
If the image is side-by-side three-dimensional content, and the display device does not support three-dimensional content,
(d-1) horizontally scaling the left or right image of the image to fit the full size of the display device; and
(d-2) not correcting the menu graphic
3D content providing method comprising a.
The method of claim 12,
If the image is side-by-side three-dimensional content, and the display device supports three-dimensional content,
(d-1) not correcting the image; and
(d-2) scaling the horizontal size of the menu graphic by one-half, and then disposing each of the menu graphics in first and second regions of the region where the menu graphic is displayed;
3D content providing method comprising a.
The method of claim 12,
And the information about the 3D content includes at least one of a stream type based on a type of a video format and information on whether the image is 3D content in the program configuration information of the image.

Images